He is an expert in chemical analysis.

He is an expert in systems engineering.

Analytical chemistry is a science that reveals the composition and structure of substances.

Our school has introduced a new PA system.

We conducted a meta-analysis on this issue.

By conducting self-analysis, you can understand your own strengths and weaknesses.

The filesystem of my computer has broken down.

I am majoring in information science.

Information retrieval technology is essential for finding necessary information from a large amount of data.

Information theory is a field of study that mathematically analyzes the amount of information and the efficiency of its transmission.